Miles between Rialto, CA and San Marcos, CA

There are
75 mi
from Rialto, CA to San Marcos, CA

That's the driving distance. It would take 1 hour 32 mins to go from Rialto, California to San Marcos, California.

The flight distance (direct flight from Rialto, CA to San Marcos, CA) is 67.56 mi.

75 mi = 120.48 kms